(English Medium) ICSE Class 10 - CISCE Important Questions for Chemistry

Name the kind of particles present in carbonic acid.

The salt solution which does not react with ammonium hydroxide is :

Give one word or a phrase:

The property by which certain hydrated salts, when left exposed to atmosphere, lose their water of crystallization and crumble into powder.

Write a balanced chemical equation for the following:

Action of dilute hydrochloric acid on magnesium sulphite.

State one relevant observation for the following:

Anhydrous calcium chloride is exposed to air for some time.

Write a balanced equation for the preparation of the following salts:

Copper sulphate from copper carbonate.

Write a balanced equation for the preparation of the following salt:

Zinc carbonate from zinc sulphate.

Define normal salt.

 Choose the correct answer from the options given below :
An electrolyte which completely dissociates into ions are : 

State one observation for each of the following  : 
Lead nitric is heated strongly in a test tube. 

The pH values of three solutions A, B and C are given in the table. Answer the following questions:

1. Which solution will have no effect on litmus solution?
2. Which solution will liberate CO₂ when reacted with sodium carbonate?
3. Which solution will turn red litmus solution blue?

 The pH values of three solutions A, B and C are given in the table. Answer the folloiwng questions: 

 Which solution will liberate CO₂ when reacted with sodium carbonate? 

 Name the particles present in : 
Strong electrolyte 

 Choose the method of preparation of the following salts, from the methods given in the list:
[List :  A. Neutralization B. Precipitation  C. Direct combination D. Substitution ]
(i) Lead chloride
(ii) Iron (II) sulphate
(iii) Sodium nitrate

(iv) Iron (III) chloride 

The acid which does not form acid salt by a basic radical.

State the terms/process for the following:

A type of salt formed by partial replacement of hydroxyl radicals with an acid radical.

Match the salts underlined in Column A with the most suitable method of preparation given in Column B.

You are provided with the list of chemicals mentioned below in the box:

Using suitable chemicals from the list given, write a balanced chemical equation for the preparation of the salt mentioned below:

Ferric chloride

When a metallic oxide is dissolved in water, the solution formed has a high concentration of ____________ ions (H⁺, h₃O⁺, OH^-)

Choose the correct answer from the options given below:

A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is:

1) Calcium chloride

2) Ferrous chloride

3) Ferric chloride

4) Copper chloride